Where to learn from Terraform tutorials in Hashicorp site Since I focus on AWS, I enjoyed the aws tutorials About Terraform HashiCorp Terraform is an infrastructure as code tool that lets you define both cloud and on-prem resources in human-readable configuration files. You can version, reuse, and share these file. …

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Linux Basics linux introduction linux links Running in VirtualBox trying out commands command types basic linux review questions Linux Files file basics file permissions devices & mount hard & soft links linux files review questions Processes processes basics system calls shared libraries Various vi editor …

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About the linux directory tree Linux has a single directory tree, starting with the root directory Othe oerating systems use different methods to refer to the same information. Microsoft Windows for example, uses a single tree for each device. It uses letters to refer to thise devices. eg: a:\mydir\myfile.txt is a file …

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inodes The inode (index node) is a data structure in a Unix-style file system that describes a file-system object such as a file or a directory. Each inode stores the attributes and disk block locations of the object's data Since each file has a single inode, the inode number can be thought of the "physical …

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About Permissions Here's a long listing of a file I've created with the touch command: 1-rw-rw-r-- 1 osboxes osboxes 0 Jan 7 07:30 myfile This is the explanation to the first field you see: Where: r means read w means write x means execute The numbers specify the values in binary converted to octal, so you can specify …

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Use this post as a guide, to learn basic file commands. List Files Use ls to just list file: 1ls Use long listing (ls -l) to do the same. List a specific file (let's say you have a file called "mydata"): 1ls mydata Long list that file: 1ls -l mydata List a directory that is not the current directory: 1ls /tmp …

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Command Types Try the following commands: 1type -a ls 2which ls The bash type builtin shell command can show you what is the type of the parameter you give it. The -a parameter asks for ALL available types. Linux has several command types(e.g ‘alias’, ‘function’, ‘builtin’, ‘file’, ‘keyword’) We'll focus on: file shell …

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Opening a terminal Use the start button at the bottom left to show pre-installed applications. Then run the Terminal application Inside this window, you are actually running the famous linux-shell, in this case bash. Most of the time, linux user type text commands in a shell like this. let't try this out. Running …

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Infrastructure I use this infrastructure throughout my training material. I run multiple versions, and cannot "get rid of" my Windows (I don't hate Windows that much :) so using virtualization was a practical solution. first, install VirtualBox from this location. (I am currently using is 7.0.12 r159484) …

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What is Linux Linux is an operating system. It is the main big program that operates the computer - hence the name. Linux is UNIX like operating system. The UNIX project (back in the 70s) was meant to create a simpler, but in the same time more powerfull example of an operating systems. You can read more about the UNIC …

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